I had the pleasure back in the mid 80's to ride along one winter with a dog trainer. Went down to Pensacola & trained hard for 6 weeks then started hitting the retriever field trials.
I actually got to watch River Oaks Corky, one of the greatest black labs ever run.
That night we were sitting around the campground around a fire, bs'ing & relaxing. I saw Corkys owner turn to him & told him to go get me a beer.
The dog gets up, goes inside the RV, comes back with a beer. There was no one else inside the RV. Corky drops the beer in his hand, and he swears. Hands the beer back to corky. Not one of my Wifes beers, silly, one of MINE!
Corky plods back to the RV, comes back 1 min later with the correct brand.
True story
BTW VERY nice Golden Goaly!